Motor drive cords connect to the camera's remote cable socket, and enable the Pocket Wizard radio slave to trigger the camera's shutter remotely. This pre-trigger cable is designed to keep the camera constantly "awake", and has the same effect as holding the camera's trigger button pressed down half-way. A camera will trigger much faster in the "awake" mode, but will also use up more battery power. However, the pre-trigger mode can be switched on or off from the cable itself. Works with any Nikon camera that accepts an MC-30 trigger cord. This cable is 3' long, and will trigger Nikon 10-pin cameras, eg. F6, F5, N90/s, F100, and Digital D1 series.